摘要
在对导弹结构的固有动力特性和响应分析中,我们会发现,轴向分布的接头对于全弹的刚度和阻尼特性都带来明显的扰动,对固有频率的影响最大甚至可达25%左右。所以我们必须对导弹弹体接头的动力特性及它对全弹动力特性的影响做深入研究,从而有效地确定全弹动力特性和数学模型,可靠地控制全弹的结构动力响应特性[1]。
In the course of analysis on natural speciality and response of missiles' structure, axial po- sition joints produce obvious effects on rigidity and speciality of damp, especially, the maximal effect on natural frequency can reach up to about 25%. And therefore, an in - depth research on dynamical speciality of joint and the whole missile is of great value. Consequently, dynamical specialities of the whole frame and mathematical models are accurately gotten and dynamical response of the whole frame is available acquired.
出处
《飞机设计》
2009年第2期18-20,共3页
Aircraft Design
关键词
弹体接头
固有频率
刚度损失
耦合振动
missiles' joint
natural frequency
rigidity loss
couple vibration